I believe it is the <span>the potato gene pool </span>
The most appropriate lighting for a reptile enclosure which ensure ultraviolet -B exposure. Reptiles depend upon skin manufactured vitamin D3 and has no capability to use the vitamin D3 which is available in the food they eat.For these reason reptile must bask in the sun or the UVB emitting bulb which help to maintain vitamin D3.
Answer:
At low Ts= Hopanoids increase membrane fluidity
At higher Ts= Hopanoids reduce the membrane fluidity
Explanation:
Bacterial membranes lack cholesterol but have hopanoids. Hopanoids are synthesized from the same precursor as the steroid. The hopanoids also have five fused ring structures like that of cholesterol. The amphipathic nature of hopanoids allows them to maintain the membrane fluidity under low and higher temperature conditions.
When the temperatures are higher, the hopanoids serve to reduce the membrane fluidity by their ability to interact with polar heads and non-polar tails of the membrane phospholipids. At lower temperatures, hopanoids insert themselves between the non-polar tails of phospholipids to increase the membrane fluidity.